Lifeboat davit operating by gravity



n 9, 1942. D. B ARRICELLI LIFEBOAT DAVI T OPEMTING' BY GRAVITY Filed Dec. 19, 1938 Patented June 9, 1942 i LIFEBOAT DAVIT OPERATING BY GRAVITY Domenico Barricelli, Genoa, Italy Application December 19, 1938, Serial No. 246,717

In Italy January 12, 1938 3 Claims.

The present invention relates to a life-boat davit of the type wherein the life-boat is lowered by gravity.

An object of the invention resides in providing a davit adapted to swing outwardly during the launching of the life-boat and provided with means for arresting the lowering of the boat in such a position that the passengers entering the life-boat from the deck of the ship will not be adversely impressed with the great height of the life-boat above the level of the sea.

Another object of the invention resides in providing a hinged life-boat davit having means associated therewith for limiting the outward swinging movement of one portion of the davit.

Other and further features and objects of the invention will be apparent from a consideration of the annexed drawing and the following description wherein an exemplary embodiment of the invention is disclosed.

In the drawing:

Fig. 1 is a diagrammatic end view of one of the davits embodying the invention.

Fig. 2 is a similar diagrammatic end view showing the davit parts in a position for lowering the life-boats.

' Referring to the drawing, one of the davits is formed of two bracket parts. The lower part of the davit includes a rigid lever or arm i extending upwardly from the deck 3 of a ship. The

rigid bracket part I5 is hinged or pivotally secured to the deck of the ship at 2. The upper part of the rigid lever or bracket i5 is provided with a horizontally extending arm is in that this arm is normally in a horizontal position. The upperpartwf; the davit includes an auxiliary lever having a normally horizontal portion 18 and an upwardly extending portion I! which also curves outwardly near the top of the davit.

The two parts l6 and l! of the davit are piv0tally connected by means of a hinge l9. The top member ll of the davit is provided with a tackle l for suspending a life-boat 6 therefrom. Means is provided adjacent the hinge 19 for limiting the outward swinging movement of the auxiliary lever ll. Such limiting means may take the form of an arcuate-shaped member secured for example to the horizontal portion l6 of the davit.

When it isdesired to lower the life-boat 6 the rope 8 is slackeiied and the hinged davit formed of the parts l6 and I'lswing outwardly on the pivot 2 and the davit and the life-boat thus assume the position illustrated in dotted lines in Fig. 1. The davit and the life-boat are arrested in this position by engagement of the stop member at the point 22 on the deck 3 of the ship. In this position the inner side of the life-boat overlaps the outer edge of the deck of the ship so that the passengers entering the life-boat cannot be adversely affected by the great height of the life-boat above sea level. Thus the pas-' sengers may readily enter the life-boat ,6 in the dotted line position as shown in Fig. 1.

When it is desired to lower the life-boat to the surface of the water the rope 8 is further slackened and the upper part I! of the davit swings outwardly until the normal horizontal portion i8 is arrested by means of the stop member 25. Thereafter further slackening of the rope 8 will permit the tackle to be extended whereby the life-boat may be lowered to the surface of the water.

, While the invention has been described with reference to specific structural details, it will be appreciated that changes may be made therein by those skilled in the art. Such changes may be made without departing from the spirit and scope of the invention as set forth in the appended claims.

I claim: 1. A davit for launching a boat from the deck of a ship comprising, a rigid lever extending upwardly from the deck of the ship, hinge means pivotally connecting said lever to "the deck of the ship at a point inwardly from the side of the ship, an arm carried by said lever extending substantially at a right angle to said lever, an

auxiliary lever having a normally horizontal portion and a portion extending upwardly and outwardly from said-horizontalportion, means pivotally connecting the horizontal portion of said auxiliary lever to said arm, means suspending the boat to the upper end of said auxiliary lever, and means limiting the outward pivoting, movement of said auxiliary lever with respect to said arm.

2. A davit for launching a boat from the deck of a ship comprising, a rigid lever extending upwardly from the deck of the ship, hinge means pivotally connecting said lever to the deck'of the ship at a point inwardly from the side of, the ship, an arm carried by said lever extending substantially at a right angle to said lever, an auxiliary lever having a normally horizontal portion and a portion extending upwardly and outwardly from said horizontal portion, means pivotally connecting the horizontal portion of said auxiliary lever to said arm, means suspending the boat to the upper end of said auxiliary new or ies 5? 1 lever, and means carried by said arm adapted to engage the deck of the ship for limiting the downward swinging movement of said auxiliary lever with respect to said arm.

3. A davit for launching a boat from the deck of a ship comprising, a rigid lever extending upwardly from the deck of the ship, hinge means pivotally connecting said lever to the deck of the ship at a point inwardly from the side of the ship, an arm carried by said lever extending substantially at a right angle to said lever, an auxiliary lever having a normally horizontal por- 10 respect to said arm.

DOMENICO BARRICEILI. 

